Re: Behaviour of system tray bandwidth indicator

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On Thu, 2014-03-20 at 11:54 +0100, Kevin Kofler wrote:
> Patrick O'Callaghan wrote:
> > I'm using Dolphin to copy large files (several GB) to an NFS-mounted
> > NAS. This works fine except that the informational system tray pop-up is
> > showing absurd values for the copy bandwidth. e.g. a 2GB file is
> > declared to be finished when it's only just started. It looks like
> > what's being measured is the rate of handoff to network buffers. This
> > machine has a quad-core i7 CPU with 16GB of RAM and isn't doing much
> > else, so the entire file could be copied to system buffers very quickly.
> > However the actual LAN is 100Mbps so the real copy takes several
> > minutes, and it's only then that I get the pop-up saying it's finished.
> 
> The UI can only indicate what is visible to user space, it has no way to, 
> nor is it expected to, know what the kernel does behind the scenes. If the 
> kernel reports that it has processed the data, the UI shows it as processed. 
> That is exactly as designed.

No doubt, however it's not how it's *read*. The interface could be
clearer about what it's actually showing when the information is
misleading.

poc

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